Cheapest right now: £0.083 per gram — Magnesium 3-in-1 Complex 400mg of Elemental, High-Strength Magnesium Supplement, 120 Vegan… . £0.56 median of 9 in-stock listings. Updated 26 Aug 2026.
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1–9 of 9 products. Updated 26 Aug 2026
£/g magnesium ▲ Dose Price Size Form Type Rating Name £0.083 400 mg £3.99 120 caps · 120 srv Capsules Complex 4.6 (2.3k) Magnesium 3-in-1 Complex 400mg of Elemental, High-Strength Magnesium Supplement, 120 Vegan Capsules, Supports Muscle, Bone & Energy - Venice Nature. £0.25 2 g £15.19 120 caps · 30 srv Capsules Complex 4.5 (4) Magnesium L-Threonate Complex 2600mg | Neuro Formula with 2000mg Magnesium Threonate, 500mg Lion's Mane, 100mg Phosphatidylserine & Vitamin B6 | 120 Vegan Capsules | Cognitive Support | Lab Tested £0.39 300 mg £13.97 120 caps · 120 srv Capsules Complex 4.1 (176) L-Tryptophan 220mg - 120 Capsules/Sleep Complex with Added Lemon Balm, Chamomile, Magnesium, Niacin & Vitamin B6 - Natural Alternative to Melatonin / 4 Month Supply – Made in The UK £0.42 1 g £25.49 120 caps · 60 srv Capsules Complex 4.2 (89) Vinco Triple Magnesium L-Threonate with L-Theanine & Apigenin – 120 Capsules - 3-in-1 Apigenin Threonate Supplements for Sleep & Relaxation - Triple Magnesium Complex Made in The UK ~£0.56 ~300 mg £9.99 120 caps · 60 srv Capsules Complex 4.6 (26) Magnesium L-Threonate Complex with L-Theanine Vitamin D3 & C - High Strength Magnesium for Sleep Brain Support Focus & Relaxation, Age Related Memory Support for Women Men 2 ingredients Magnesium Complex — Vitamin D3 —
£0.59 420 mg £9.99 120 caps · 40 srv Capsules Complex 4.7 (32) Nutrivo Magnesium Complex 7 in 1 with Vitamin B6, Vitamin D & Zinc | High Strength Magnesium Supplements - 2450mg | 120 Magnesium Capsules - 40 Day Supply | Magnesium Supplement 2 ingredients Magnesium Complex — Zinc —
£1.73 125 mg £12.99 125 g · 60 srv Tablets Complex 4.6 (3.3k) Nutraxin 4-in-1 Magnesium Complex 125g - 60 Tablets, 2 Month Supply | 4-in-1 Magnesium Complex, 4 Forms plus Vitamin B6, For Energy, Muscle, Bone & Fatigue ~£2.14 ~300 mg £19.27 60 caps · 30 srv Capsules Complex 4.2 (198) Red Clover Menopause & Perimenopause Support Supplement 17-in-1 High Strength Complex with Magnesium Ashwagandha, Sage, Maca, Vitamins, Minerals – 60 Vegan Capsules – Meno Pact Complete by Nutripact ~£2.33 ~300 mg £20.95 90 caps · 30 srv Capsules Complex 4.7 (39) BioCare Magnesium Calcium Complex, 90 Capsules | Balanced Magnesium and Calcium for Bone and Muscle Support
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